UMMDX — Columbia Bond Fund
Data updated: 2026-03-27
UMMDX — Columbia Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Total / Aggregate Bond · $1.40B AUM · 0.50% expense ratio · 7.7% 1-yr return. From SEC regulatory filings.
UMMDX Fund Overview
UMMDX — Columbia Bond Fund is a US mutual fund managed by Columbia Funds Series Trust I, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Columbia Funds Series Trust I
- Category: Long Total / Aggregate Bond
- Assets under management: $1.40B
- 1-year return: 7.7%
- Ticker: UMMDX
- SEC CIK: 0000773757
- SEC series ID: S000021579
- Share class ID: C000255094
UMMDX Holdings
Top 10 holdings of Columbia Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Columbia Short Term Cash Fund | 4.88% |
| Umbs, Tba | 2.56% |
| Fannie Mae | 2.00% |
| Umbs, Tba | 1.88% |
| Fannie Mae | 1.72% |
| Federal National Mortgage Association Fnma_25-86 | 1.39% |
| Federal National Mortgage Association | 1.26% |
| Federal National Mortgage Association | 1.17% |
| Fannie Mae | 1.06% |
| Elmwood CLO 40 Ltd | 1.00% |
UMMDX Portfolio Allocation
Asset-class allocation of Columbia Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 80.0% |
| Fixed Income | 22.3% |
| Cash & Equivalents | 4.9% |
UMMDX Performance
Total returns for UMMDX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.2% |
| 1 year | 7.7% |
UMMDX Risk Information
Risk metrics for UMMDX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.1%
UMMDX Costs and Fees
UMMDX costs about $50 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.50%
- Gross expense ratio: 0.64%
- Portfolio turnover: 228%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
UMMDX Cashflows
Over the 12 months to 2026-01, Columbia Bond Fund had net inflows of $386.54M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-01 | $9.24M |
| 2025-12 | $20.39M |
| 2025-11 | $7.78M |
| 2025-10 | $3.41M |
| 2025-09 | −$10.14M |
| 2025-08 | $350.13M |
UMMDX Debt Constituents
Largest debt holdings of Columbia Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Citigroup, Inc. | 0.80% |
| United States Treasury | 0.69% |
| United States Treasury | 0.68% |
| Hca, Inc. | 0.67% |
| Gilead Sciences, Inc. | 0.67% |
| JPMorgan Chase & Co. | 0.66% |
| JPMorgan Chase & Co. | 0.59% |
| T-Mobile USA, Inc. | 0.57% |
| Abbvie, Inc. | 0.55% |
| United States Treasury | 0.54% |
UMMDX Prospectus and SEC Filings
Official Columbia Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Total / Aggregate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.